<template>
    <el-main v-loading="loading" class="image-main">
        <div class="top p-3">
            <el-empty v-if="list.length == 0 && !loading" description="暂无图片"></el-empty>
            <el-row :gutter="10">
                <el-col v-for="(item, index) in list" :key="index" :span="6" :offset="0">
                    <el-card shadow="hover" class="relative mb-3" :body-style="{ padding: 0 }" :class="{ 'border-blue-500': item.checked }">
                        <el-image :src="item.url" fit="cover" class="h-[150px]" style="width: 100%" :preview-src-list="[item.url]" :initial-index="0"></el-image>
                        <div class="image-title">{{ item.name }}</div>
                        <div class="flex items-center justify-center p-2">
                            <el-checkbox v-if="openChoose" v-model="item.checked" @change="handleChooseChange(item)" />

                            <el-button type="primary" size="small" text @click="handleEdit(item)">重命名</el-button>

                            <el-popconfirm title="是否删除该图片？" confirm-button-text="确认" cancel-button-text="取消" @confirm="handleDelete(item.id)">
                                <template #reference>
                                    <el-button class="!m-0" type="primary" size="small" text>删除</el-button>
                                </template>
                            </el-popconfirm>
                        </div>
                    </el-card>
                </el-col>
            </el-row>
        </div>
        <div class="bottom">
            <el-pagination background layout="prev,pager, next" :total="total" :current-page="currentPage" :page-size="limit" @current-change="getData" />
        </div>
    </el-main>

    <el-drawer v-model="drawer" title="上传图片">
        <UploadFile :data="{ image_class_id }" @success="handleUploadSuccess" />
    </el-drawer>
</template>
<script setup>
import { ref, computed } from 'vue'
import { getImageList, updateImage, deleteImage } from '~/api/image.js'
import { showPrompt, toast } from '~/composables/util.js'
import UploadFile from './UploadFile.vue'

// 上传图片
const drawer = ref(false)
const openUploadFile = () => (drawer.value = true)

// 分页
const currentPage = ref(1)
const total = ref(0)
// const limit = ref(10)
const list = ref([])
const loading = ref(false)
const image_class_id = ref(0)

// 获取数据
function getData(p = null) {
    if (typeof p == 'number') {
        currentPage.value = p
    }

    loading.value = true
    getImageList(image_class_id.value, currentPage.value)
        .then((res) => {
            total.value = res.totalCount
            list.value = res.list.map((o) => {
                o.checked = false
                return o
            })
        })
        .finally(() => {
            loading.value = false
        })
}

// 根据分类ID重新加载图片列表
const loadData = (id) => {
    currentPage.value = 1
    image_class_id.value = id
    getData()
}

// 重命名
const handleEdit = (item) => {
    showPrompt('重命名', item.name).then(({ value }) => {
        loading.value = true
        updateImage(item.id, value)
            .then((res) => {
                toast('修改成功')
                getData()
            })
            .finally(() => {
                loading.value = false
            })
    })
}

// 删除图片
const handleDelete = (id) => {
    loading.value = true
    deleteImage([id])
        .then((res) => {
            toast('删除成功')
            getData()
        })
        .finally(() => {
            loading.value = false
        })
}

// 上传成功
const handleUploadSuccess = () => getData(1)

const props = defineProps({
    openChoose: {
        type: Boolean,
        default: false,
    },
    limit: {
        type: Number,
        default: 1,
    },
})

// 选中的图片
const emit = defineEmits(['choose'])
const checkedImage = computed(() => list.value.filter((o) => o.checked))
const handleChooseChange = (item) => {
    if (item.checked && checkedImage.value.length > props.limit) {
        item.checked = false
        return toast(`最多只能选中${props.limit}张`, 'error')
    }
    emit('choose', checkedImage.value)
}

defineExpose({
    loadData,
    openUploadFile,
})
</script>
<style>
.image-main {
    position: relative;
}
.image-main .top {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 50px;
    overflow-y: auto;
}
.image-main .bottom {
    position: absolute;
    bottom: 0;
    height: 50px;
    left: 0;
    right: 0;
    @apply flex items-center justify-center;
}
.image-title {
    position: absolute;
    top: 122px;
    left: -1px;
    right: -1px;
    @apply truncate bg-gray-800 bg-opacity-50 px-2 py-1 text-sm text-gray-100;
}
</style>
